Datasheet
LT6236/LT6237/LT6238
11
623637fa
For more information www.linear.com/LT6236
ELECTRICAL CHARACTERISTICS
The l denotes the specifications which apply over the –40°C < T
A
< 125°C
temperature range. V
S
= ±5V, V
CM
= V
OUT
= 0V, ENABLE = 0V, unless otherwise noted. (Note 5)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
OS
Input Offset Voltage LT6236
LT6237MS8, LT6238GN
LT6237DD8
l
l
l
750
650
700
µV
µV
µV
Input Offset Voltage Match
(Channel-to-Channel) (Note 6)
l
1000 µV
V
OS
TC Input Offset Voltage Drift (Note 10) LT6236
LT6237MS8
LT6237DD8
LT6238GN
l
l
l
l
0.7
0.5
0.4
0.5
2.2
1.8
2.2
2.2
µV/°C
µV/°C
µV/°C
µ
V/°C
I
B
Input Bias Current
l
12 µA
I
B
Match (Channel-to-Channel) (Note 6)
l
1.1 µA
I
OS
Input Offset Current
l
1.2 µA
A
VOL
Large-Signal Gain V
O
= ±4.5V, R
L
= 10k
V
O
= ±4.5V, R
L
= 1k
V
O
= ±2V, R
L
= 100Ω
l
l
l
76
21
4.1
V/mV
V/mV
V/mV
V
CM
Input Voltage Range Guaranteed by CMRR
l
–3 4 V
CMRR Common Mode Rejection Ratio V
CM
= –3V to 4V
l
95 dB
PSRR
Power Supply Rejection Ratio V
S
= ±1.5V to ±5V
l
85 dB
V
OL
Output Voltage Swing Low (Note 8) No Load
I
SINK
= 5mA
I
SINK
= 20mA
l
l
l
70
230
550
mV
mV
mV
V
OH
Output Voltage Swing High (Note 8) No Load
I
SOURCE
= 5mA
I
SOURCE
= 20mA
l
l
l
78
240
710
mV
mV
mV
I
SC
Short-Circuit Current
l
±15 mA
I
S
Supply Current per Amplifier
Disabled Supply Current per Amplifier
ENABLE = 4.85V
l
l
10
5.5 mA
µA
I
ENABLE
ENABLE Pin Current ENABLE = 0.3V
l
–110 µA
V
L
ENABLE Pin Input Voltage Low
l
0.3 V
V
H
ENABLE Pin Input Voltage High
l
4.85 V
SR Slew Rate A
V
= –1, R
L
= 1k, V
O
= –2V to 2V
l
37 V/µs
FPBW Full-Power Bandwidth V
OUT
= 3V
P-P
(Note 9)
l
3.9 MHz
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Inputs are protected by back-to-back diodes. If the differential
input voltage exceeds 0.7V, the input current must be limited to less than
40mA.
Note 3: A heat sink may be required to keep the junction temperature
below the absolute maximum rating when the output is shorted
indefinitely.
Note 4: The LT6236C
/LT6236I/LT6236H, the LT6237C/LT6237I/LT6237H
and the LT6238C/LT6238I/LT6238H are guaranteed functional over the
temperature range of –40°C to 125°C.
Note 5: The LT6236C/LT6237C/LT6238C are guaranteed to meet specified
performance from 0°C to 70°C. The LT6236I/LT6237I/LT6238I are
guaranteed to meet specified performance from –40°C to 85°C.
The LT
6236H/LT6237H/LT6238H are guaranteed to meet specified
performance from –40°C to 125°C. The LT6236C/LT6237C/LT6238C are
designed, characterized and expected to meet specified performance from
–40°C to 85°C, but are not tested or QA sampled at these temperatures.
Note 6: Matching parameters are the difference between the two amplifiers
A and D and between B and C of the LT
6238 and between the two
amplifiers of the LT6237.
Note 7: Minimum supply voltage is guaranteed by power supply rejection
ratio test.
Note 8: Output voltage swings are measured between the output and
power supply rails.
Note 9: Full-power bandwidth is calculated from the slew rate:
FPBW = SR/2πV
P
Note 10: This parameter is not 100% tested.